Determination of the energy dissipation of a vortex in a superconductor using a giant magnetoresistive sensor
M. Pannetier-Lecoeur, C. Fermon
DOI 10.1103/PhysRevB.72.180501 · Physical Review B
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Abstract
We present a method to determine the dissipation energy of a controlled number of vortices flowing in a superconductor. The principle is to use a mixed sensor made of a large superconducting loop closed by a micron-size constriction coupled to a giant magnetoresistive sensor. The results obtained on niobium are in good agreement with the heat-transfer model developed in this report, which allows to determine accurately the dissipation energy of a vortex.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.5 | Pressure not reported | unknown |
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